:root{--bg:#0b0d12;--panel:#151923;--line:#262c3a;--text:#eef1f7;--muted:#9aa3b5;--accent:#6d8bff;--accent2:#b36dff;--ok:#3ddc97;--warn:#ffb547}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--accent)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 26px;border:0;border-radius:14px;font-weight:600;font-size:1rem;font-family:inherit;color:#fff;cursor:pointer;text-decoration:none;background:linear-gradient(135deg,var(--accent),var(--accent2));box-shadow:0 8px 30px rgba(109,139,255,.35);transition:transform .15s}
.btn:active{transform:scale(.97)}
.btn.ghost{background:transparent;border:1px solid var(--line);box-shadow:none;color:var(--text)}
.btn.small{padding:9px 16px;font-size:.9rem;border-radius:10px}

/* ---------- landing ---------- */
.wrap{max-width:1040px;margin:0 auto;padding:0 20px}
header.hero{padding:72px 0 48px;text-align:center;background:radial-gradient(ellipse at top,rgba(109,139,255,.22),transparent 60%)}
.hero h1{font-size:clamp(2rem,6vw,3.4rem);margin:0 0 12px;letter-spacing:-.02em}
.hero p{color:var(--muted);font-size:1.1rem;max-width:560px;margin:0 auto 28px}
.pill{display:inline-block;padding:6px 12px;border:1px solid var(--line);border-radius:99px;color:var(--muted);font-size:.8rem;margin-bottom:18px}
section{padding:40px 0}
h2{font-size:1.5rem;margin:0 0 20px}
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:22px}
.card .n{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;font-weight:700;background:rgba(109,139,255,.15);color:var(--accent);margin-bottom:12px}
.card h3{margin:0 0 6px;font-size:1.05rem}
.card p{margin:0;color:var(--muted);line-height:1.5}
.exp{display:grid;grid-template-columns:200px 1fr;gap:22px;align-items:center}
.exp img{width:100%;background:#fff;border-radius:12px;padding:10px}
.exp .actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.qr{display:flex;gap:24px;align-items:center;flex-wrap:wrap}
.qr #qr{background:#fff;padding:12px;border-radius:14px;line-height:0}
.qr code{background:var(--bg);padding:4px 8px;border-radius:6px;word-break:break-all}
footer{padding:40px 0;color:var(--muted);text-align:center;font-size:.85rem;border-top:1px solid var(--line);margin-top:30px}
@media(max-width:600px){.exp{grid-template-columns:1fr}.exp img{max-width:220px;margin:0 auto}}

/* ---------- AR view ---------- */
body.ar{overflow:hidden;position:fixed;inset:0}
.overlay{position:fixed;inset:0;z-index:20;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:24px;background:rgba(8,10,15,.94);transition:opacity .35s}
.overlay.hide{opacity:0;pointer-events:none}
.overlay h1{margin:0 0 10px;font-size:1.7rem}
.overlay p{color:var(--muted);max-width:340px;line-height:1.5;margin:0 0 24px}
.overlay img.mk{width:120px;background:#fff;border-radius:10px;padding:8px;margin-bottom:22px}
.spinner{width:42px;height:42px;border-radius:50%;border:3px solid var(--line);border-top-color:var(--accent);animation:spin 1s linear infinite;margin-bottom:18px}
@keyframes spin{to{transform:rotate(360deg)}}

.scan{position:fixed;inset:0;z-index:5;pointer-events:none;display:flex;align-items:center;justify-content:center;transition:opacity .3s}
.scan.hide{opacity:0}
.frame{width:min(68vw,300px);aspect-ratio:1;position:relative}
.frame i{position:absolute;width:38px;height:38px;border:4px solid #fff;filter:drop-shadow(0 0 6px rgba(0,0,0,.5))}
.frame i:nth-child(1){top:0;left:0;border-right:0;border-bottom:0;border-radius:14px 0 0 0}
.frame i:nth-child(2){top:0;right:0;border-left:0;border-bottom:0;border-radius:0 14px 0 0}
.frame i:nth-child(3){bottom:0;left:0;border-right:0;border-top:0;border-radius:0 0 0 14px}
.frame i:nth-child(4){bottom:0;right:0;border-left:0;border-top:0;border-radius:0 0 14px 0}
.frame::after{content:"";position:absolute;left:8%;right:8%;height:2px;background:linear-gradient(90deg,transparent,var(--accent),transparent);box-shadow:0 0 12px var(--accent);animation:sweep 2.2s ease-in-out infinite}
@keyframes sweep{0%,100%{top:8%}50%{top:92%}}

.topbar{position:fixed;top:0;left:0;right:0;z-index:10;display:flex;justify-content:space-between;align-items:center;padding:calc(env(safe-area-inset-top) + 12px) 14px 12px;background:linear-gradient(rgba(0,0,0,.55),transparent)}
.status{display:flex;align-items:center;gap:8px;font-size:.9rem;font-weight:600;background:rgba(0,0,0,.45);padding:8px 12px;border-radius:99px}
.dot{width:9px;height:9px;border-radius:50%;background:var(--warn);box-shadow:0 0 8px var(--warn)}
.status.found .dot{background:var(--ok);box-shadow:0 0 8px var(--ok)}
.iconbtn{width:44px;height:44px;border-radius:50%;border:0;background:rgba(0,0,0,.45);color:#fff;display:grid;place-items:center;cursor:pointer;text-decoration:none}
.iconbtn svg{width:22px;height:22px}

.controls{position:fixed;left:0;right:0;bottom:0;z-index:10;display:flex;justify-content:center;gap:14px;padding:16px 16px calc(env(safe-area-inset-bottom) + 20px);background:linear-gradient(transparent,rgba(0,0,0,.6))}
.controls .iconbtn{width:54px;height:54px}
.hint{position:fixed;bottom:calc(env(safe-area-inset-bottom) + 96px);left:50%;transform:translateX(-50%);z-index:10;background:rgba(0,0,0,.55);padding:8px 14px;border-radius:10px;font-size:.88rem;white-space:nowrap}
.cta{position:fixed;top:calc(env(safe-area-inset-top) + 70px);left:50%;transform:translateX(-50%);z-index:10;display:none}
.cta.show{display:inline-flex}

.fullvid{position:fixed;inset:0;z-index:30;background:#000;display:none;align-items:center;justify-content:center}
.fullvid.show{display:flex}
.fullvid video{max-width:100%;max-height:100%}
.fullvid .iconbtn{position:absolute;top:calc(env(safe-area-inset-top) + 14px);right:14px}